Image courtesy of Edifier.
Surround sound is a sound technique that we have enjoyed since the 1940s when Disney introduced it with its film, Fantasia. No longer were we limited to two speakers at the front of our theatres—we could now be immersed in sound with speakers all around us.
There are quite a few ways to set up a surround sound system, with two of the most common for a home being either 5.1 or 7.1. The first number tells us how many speakers are in the setup, and the second number notes how many subwoofers there are for heart-pounding bass.
A classic 5.1 setup will generally have three speakers in the front of the room for the left, right, and center channels.
An additional two speakers are in the rear for the back-left and back-right channels, as well as a subwoofer which can be placed anywhere in the room (don’t forget that .1 in 5.1).
A 7.1 setup would add two speakers placed to the immediate right and left of the seating area—these are known as surround left and right surround channels. These additional speakers can make the illusion of sound moving around you more convincing.
With Dolby Surround Sound, you can hear the dinosaurs from Jurassic World run up from behind you or the evil spirit from your favorite horror film breathing on the back of your neck.